A Parallel Current Sharing Power Supply System
A power supply system, parallel technology, applied in electrical components, output power conversion devices, etc., can solve the problems that a single load system is difficult to meet application requirements, and the overcurrent protection clamp circuit cannot be expanded, and achieves high reliability and high reliability. The effect of redundancy
Active Publication Date: 2019-07-12
58TH RES INST OF CETC
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Problems solved by technology
The existing overcurrent protection clamping circuit of this structure cannot be expanded. If the load current is large, it is difficult for a single load system to meet the application requirements.
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[0037] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.
[0038] like Figure 2 to Figure 6 As shown, a parallel current-sharing power supply system according to the present invention, the power supply system has a power supply terminal for accessing an external power supply and a power supply terminal for external power supply. The power system includes two power system modules and two resistors, the two power system modules are respectively the first power system module 100 and the second power system module 200, and the two resistors are respectively the first resistor R1 and the second resistor R2 .
[0039] Each of the two power system modules includes an output power unit 1, a sampling unit 2, a programmable ...
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The invention relates to a paralleled current sharing power system. The power system comprises two power system modules and two resistors. The input end of an output power unit of a first power systemmodule and the input end of an output power unit of a second power system module are short-circuited and are connected with the power end of the power system. The output end of the output power unitof the first power system module and the output end of the output power unit of the second power system module are short-circuited and are connected with the power supply end of the power system. Oneend of a first resistor is connected with a reference current port of the first power system module, and the other end of the first resistor is connected with a sensing output port of the second powersystem module. One end of a second resistor is connected with a sensing output port of the first power system module, and the other end of the second resistor is connected with a reference current port of the second power system module. The power system realizes high-precision current sharing and the promotion of load capacity, and has relatively high redundancy and high reliability.
Description
technical field [0001] The invention belongs to the technical field of power supply management, and in particular relates to a parallel current sharing power supply system. Background technique [0002] With the increasing integration of a large number of electronic equipment systems, especially the wide application of computers, communications, space stations, etc., the requirements for the power supply system are getting higher and higher: the load capacity is increased, and the power module is required to provide higher loads; the power supply Reliability requires the designed power system to have higher redundancy backup. [0003] High power output and distributed power supply enable the rapid development of power supply system parallel technology. However, in general, direct parallel connection between power supply systems is not allowed, and current sharing technology must be used to ensure that each module shares an equal load current. The low-voltage module not onl...
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IPC IPC(8): H02M1/00H02M1/32
CPCH02M1/00H02M1/32
Inventor 李现坤于宗光张勇潘福跃肖培磊宣志斌罗永波
Owner 58TH RES INST OF CETC